Claude Code
Sonnet 5
Inside Claude Code we ask for claude-sonnet-5 every hour. Everything below comes from those runs on our lab machine.
Write speed, last 24 hours
32.1wall tok/s
Tokens per second across the whole command — you press enter, the app starts, thinks, writes, finishes. Higher is better. This is the middle value of 32 clean rounds out of 34 tried in the last 24 hours.
- Time to first word
- 2.88s
- How long before the first visible word shows up. Lower is better.
- Middle wall time
- 7.69s
- How long the whole command took, start to finish, including the app booting. Lower is faster.
- Last ping
- —
- The newest tiny “reply ok” check. It measures wake-up time, not writing speed.
What stands out
Four facts pulled straight from the saved runs.
- Board position
- #4 of 10
- Just ahead: Grok 4.6 at 41.8 wall tok/s. Just behind: Opus 5 at 31.8 wall tok/s.
- Rounds that worked
- 32/34
- Clean rounds out of rounds tried, in the last 24 hours.
- Served as
- claude-sonnet-5
- The model name the app reported back. If it differs from the pin, we say so.
- Round-to-round swing
- 1.5×
- How much the fastest round beat the slowest one. A big swing means a noisy day.
- Rate limit warnings
- 2
- Rounds the vendor served but flagged the plan's usage window. They worked, but we keep them out of the medians to be safe.
Recent rounds
Newest first. Fails stay in the list with their reason.
| When | Result | Wall tok/s |
|---|---|---|
| 1m ago | rate limit warningclean | 34.9 |
| 1h ago | rate limit warningclean | 36.7 |
| 2h ago | okclean | 32.2 |
| 3h ago | okclean | 36.4 |
| 4h ago | okclean | 35.6 |
| 5h ago | okclean | 30.6 |
| 6h ago | okclean | 35.7 |
| 7h ago | okclean | 35.3 |
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How to read this
Every number here comes from our lab machine running the paid app, one try per hourly round, on test kit v6. Our measurements, not the vendor’s.